Impact of Argon in Reforming of (CH4 + CO2) in Surface Dielectric Barrier Discharge Reactor to Produce Syngas and Liquid Fuels
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The aim of this work is to study the role of argon during plasma reforming of methane and carbon dioxide in order to convert Biogas into liquid fuels. Mixtures of synthetic CH4 and CO2, representing typical biogas compositions, were processed in a surface dielectric barrier discharge reactor in the presence of argon, which is considered to improve the discharge conditions. Our measurements showed that at constant feed flow rate and constant applied power, increasing the argon percentage from 0 to 66% in the feed, leads to increase the electron density up to 60% and the electron mean energy up to 50%. In these conditions, the absolute conversions of CH4 and CO2 are improved respectively from 19 to 43% and from 11 to 25%, the H2/CO ratio enhances up to 0.9. However, despite these improvements, the addition of argon beyond 33% decreases the carbon balance by deposition of black carbon and soot, decreases the selectivity of liquid products and finally lowers the energy efficiency of CH4 + CO2 mixture conversion. Meanwhile the selectivity of 10 liquid fuels principally alcohols, ketones and light organic acids, obtained in a yield of 3 wt%, depends also on the flow rate of argon in the feed mixture.
KeywordsBiogas Dry reforming DBD Liquid fuels Argon
This work was carried out with the financial support of Université Sorbonne Paris Cité in the framework of the Programme Interdisciplinaire: Les Energies de Demain.
- 2.EurObservER (2014) Biogas-barometer-2014. In: Barometer. EurObservER, p 6Google Scholar
- 4.Hu YH, Ruckenstein E (2004) Catalytic conversion of methane to synthesis gas by partial oxidation and CO2 reforming. ChemInform 48:297–345Google Scholar
- 10.Nikravech M, Rahmani A, Lazzaroni C, Baba K (2015) CH4–CO2 reforming in surface-discharge reactor containing ZnO–Cu and NiO catalysts—influence of the applied power on products distribution. In: 22nd international symposium on plasma chemistry, P-II-8-32, p 5Google Scholar
- 14.Allégraud K (2008) Décharge à barrière diélectrique de surface: physique et procédé. Ecole Polytechnique XGoogle Scholar
- 15.Malik MA, Malik SA, Jiang X (1999) Plasma reforming of natural gas to more valuable fuels. J Nat Gas Chem 8:166–178Google Scholar
- 28.Lowke J (1997) A unified theory of arcs and their electrodes. Le Journal de Physique IV 7(C4):C4-283–C4-294Google Scholar
- 33.Anicich VG (2003) An index of the literature for bimolecular gas phase cation-molecule reaction kinetics. JPL Publication 03-19, JPL, NASA, PasadenaGoogle Scholar